OUTPUT PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
No welding output in any mode.
The auxiliary output (115-
230VAC) is normal. The engine
operates normally.
1. Check the open circuit voltage
(OCV) at the welder output
terminals, engine at high idle
(3700 RPM). Normal maximum
is 76VAC, 68VDC, 32VDC on
CV LO tap.
2. If the correct OCV is present at
the weld output terminals, check
the welding cables, connectors,
work clamp, electrode holder,
etc. for loose or faulty
connections.
1. Disconnect lead W1 from the
Output Bridge (D1) and check
for the presence of 80VAC
from lead W1 to lead W2 on
the main stator winding. See
Wiring Diagram. If the AC
voltage is NOT present, the
winding in the stator may be
faulty. Check the winding for
continuity and the test to be
sure it is NOT grounded to the
stator iron. Replace if
necessary. If the correct AC
voltage is present, proceed to
step #2.
2. Check the Reactor, Range
Switch (S1) and associated
wires for loose or faulty
connections. Check the
reactor winding for continuity
and test to be sure it is NOT
grounded to the reactor iron.
3. Check the Choke (L1), Polarity
Switch (S2) and associated
wires for loose or faulty
connections. Check the choke
winding for continuity and test
to be sure it is NOT grounded
to the choke iron.
4. Check
the
weld
output
terminals and associated wires
for loose or faulty connections.
5. Perform the
Output Bridge
Test
.
TROUBLESHOOTING AND REPAIR
F-5
F-5
RANGER® 225 GXT
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